This transponder was removed in good working condition for avionics upgrade. It has the adapter installed to be used as a slide in replacement for KT-76A.

The single block Mode S transponder BXP6403-X-(XX) is the airborne component of the Air Traffic Control (ATC). It works as a ModeS Secondary Surveillance Radar system with added ADS-B Transmitting Subsystem functionality.

I do not have a programmer for this unit. Becker USA in Florida has quote 1-1.5 hours ($95-$150) to program this transponder for your aircraft. I am happy to drop ship it to them on your behalf.